Learn about this topic in these articles:

construction by Vikings

...a road revival came during the reign of Charlemagne late in the 8th century. In the 9th century the Moors established an extensive street network in Córdoba, Spain. The Vikings operated the
Varangian Road, a major trade route linking the Baltic and the Middle East via Russia. Further road revival was aided first by the need to service the regular round of trade fairs and then, in the...